MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting a link farm designed to redirect users. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a pattern of using disposable hosting for these links. No scripts were extracted, but the overall structure points to a malicious document intended to lead users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/e1c7fd051f87d0f62d3757308e09c4bb/liwapip.pdf In PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608f268126634---24362674614.pdfIn PDF document text
- https://takitech.hu/userfiles/file/rominegutomomavogivebulaw.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/8af86cbbf15bf11c257550b24fe098a4/papiroxejokinubipu.pdfIn PDF document text
- https://turbooto.vn/upload/files/1436875477.pdfIn PDF document text
- http://hitecds.com/userfiles/file/laraned.pdfIn PDF document text
- http://fritz-fahrlaender.ch/download/30399258374.pdfIn PDF document text
- http://sportsgarten.com/editorData/file/66529306293.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/klgevioaa244uev9i3s7h3qo90/95462904903.pdfIn PDF document text
- https://petek.biz/resimler/files/78023642926.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/vusodida.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609c30ec97697---98786840662.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd36dae03e---sotisogu.pdfIn PDF document text
- https://aljazeerahpetroleum.ae/userfiles/files/3423047077.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d307fb8082---39057875811.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a955bc0d567---7795458546.pdfIn PDF document text
- https://et-auditing.com/userfiles/files/widukapoduwezuvugudozaz.pdfIn PDF document text
- http://melly-incendie.fr/img_db/47387857020.pdfIn PDF document text
- http://hieuchuan.com/upload/files/65963985934.pdfIn PDF document text
- http://bsinteriordesigner.com/userfiles/files/71397513617.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/16085867b3ddad---44322614771.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609219e8988f9---xulevolovewotos.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/jrr1smdhf76cal1n2jui95nfi3/weseverekilokowanapuveli.pdfIn PDF document text
- https://banderlogclub.ru/Files/file/bumozilu.pdfIn PDF document text
- https://numen-wow.com/userfiles/cloud//files/sewizatamiwevil.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=kyriacos+c.+markides+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dc72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC72 | 18744 bytes |
SHA-256: cfeea2c684dccce00031664a2384bd708873db28b53c3b68fee1cdedde38c474 |
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font_01_sfnt_off00010c42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C42 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012459.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12459 | 10796 bytes |
SHA-256: c36fae3e86357e5faf2af6fcb18ed4b4fd6ce64fc5d044d997a229a8ac7ba776 |
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